vi /etc/apt/sources.list

# deb http://ftp.se.debian.org/debian/ etch main
#deb http://debian-multimedia.org sarge main
#deb http://debian-multimedia.org sid main

deb http://debian-multimedia.org etch main


Output of apt-get update

root@boss[~]#apt-get update
Get:1 http://debian-multimedia.org etch Release.gpg [189B]
Hit http://debian-multimedia.org etch Release
Err http://debian-multimedia.org etch Release

Get:2 http://debian-multimedia.org etch Release [5560B]
Ign http://debian-multimedia.org etch Release
Get:3 http://debian-multimedia.org etch/main Packages [43.9kB]
99% [3 Packages bzip2 0]
bzip2: Data integrity error when decompressing.
        Input file = (stdin), output file = (stdout)

It is possible that the compressed file(s) have become corrupted.
You can use the -tvv option to test integrity of such files.

You can use the `bzip2recover' program to attempt to recover
data from undamaged sections of corrupted files.

Err http://debian-multimedia.org etch/main Packages
  Sub-process bzip2 returned an error code (2)
Fetched 5750B in 1s (3499B/s)
Failed to fetch http://debian-multimedia.org/dists/etch/main/binary-i386/Packages.bz2  Sub-process bzip2 returned an error code (2)
Reading package lists... Done
W: GPG error: http://debian-multimedia.org etch Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 07DC563D1F41B907
W: Couldn't stat source package list http://debian-multimedia.org etch/main Packages (/var/lib/apt/lists/debian-multimedia.org_dists_etch_main_binary-i386_Packages) - stat (2 No such file or directory)
W: You may want to run apt-get update to correct these problems
E: Some index files failed to download, they have been ignored, or old ones used instead.